73979713 has 4 divisors (see below), whose sum is σ = 74243268. Its totient is φ = 73716160.

The previous prime is 73979639. The next prime is 73979723. The reversal of 73979713 is 31797937.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31797937 = 23 ⋅1382519.

It can be written as a sum of positive squares in 2 ways, for example, as 29517489 + 44462224 = 5433^2 + 6668^2 .

It is a cyclic number.

It is not a de Polignac number, because 73979713 - 2¹⁷ = 73848641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73979723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131356 + ... + 131917.

It is an arithmetic number, because the mean of its divisors is an integer number (18560817).

Almost surely, 2^73979713 is an apocalyptic number.

It is an amenable number.

73979713 is a deficient number, since it is larger than the sum of its proper divisors (263555).

73979713 is a wasteful number, since it uses less digits than its factorization.

73979713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263554.

The product of its digits is 250047, while the sum is 46.

The square root of 73979713 is about 8601.1460282918. The cubic root of 73979713 is about 419.7952762655.

The spelling of 73979713 in words is "seventy-three million, nine hundred seventy-nine thousand, seven hundred thirteen".